This breaks building BaseTools with clang 13.1.6 on macOS:
/Applications/Xcode.app/Contents/Developer/usr/bin/make -C DevicePath
gcc -c -I .. -I ../Include/Common -I ../Include/ -I
../Include/IndustryStandard -I ../Common/ -I .. -I . -I
../Include/AArch64/ -MD -fshort-wchar -fno-strict-aliasing -Wall -Werror
-Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result
-nostdlib -g -O2 -Wno-error=stringop-overflow DevicePath.c -o DevicePath.o
error: unknown warning option '-Werror=stringop-overflow'; did you mean
'-Werror=shift-overflow'? [-Werror,-Wunknown-warning-option]
--
Rebecca Cran
On 3/24/22 6:04 AM, Gerd Hoffmann wrote:
In function ‘SetDevicePathEndNode’,
inlined from ‘FileDevicePath’ at DevicePathUtilities.c:857:5:
DevicePathUtilities.c:321:3: error: writing 4 bytes into a region of size 1
[-Werror=stringop-overflow=]
321 | memcpy (Node, &mUefiDevicePathLibEndDevicePath, sizeof
(mUefiDevicePathLibEndDevicePath));
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from UefiDevicePathLib.h:22,
from DevicePathUtilities.c:16:
../Include/Protocol/DevicePath.h: In function ‘FileDevicePath’:
../Include/Protocol/DevicePath.h:51:9: note: destination object ‘Type’ of size 1
51 | UINT8 Type; ///< 0x01 Hardware Device Path.
| ^~~~
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
BaseTools/Source/C/DevicePath/GNUmakefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/BaseTools/Source/C/DevicePath/GNUmakefile
b/BaseTools/Source/C/DevicePath/GNUmakefile
index 7ca08af9662d..b05d2bddfa68 100644
--- a/BaseTools/Source/C/DevicePath/GNUmakefile
+++ b/BaseTools/Source/C/DevicePath/GNUmakefile
@@ -13,6 +13,9 @@ OBJECTS = DevicePath.o UefiDevicePathLib.o
DevicePathFromText.o DevicePathUtili
include $(MAKEROOT)/Makefiles/app.makefile
+# gcc 12 trips over device path handling
+BUILD_CFLAGS += -Wno-error=stringop-overflow
+
LIBS = -lCommon
ifeq ($(CYGWIN), CYGWIN)
LIBS += -L/lib/e2fsprogs -luuid
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